Double pane window



24, 1950 R; L. HORSTMAN ETAL 2,526,752

DOUBLE PANE wmnow Filed July 14, 1947 5 R O T N E V m Patented Oct. 24, 1 950 DOUBLE PANE WINDOW Richard L. Horstman and Floyd L. Oelfke, Kansas City, Mo.

Application July 14, 1947, Serial No. 760,867

2 Claims.

This invention relates to window construction, the primary aim being to provide a window having a pair of spaced apart panes provided with novel framework for holding the panes and adapted to permit easy and quick assembling.

The most important object of this invention is the provision of a double pane window having a channel-frame for receiving the panes and a secondary frame fittable between the panes for holding the same. in spaced apart relationship and against the aforesaid channel-like frame.

Another important object of this invention is to provide double pane windows of the aforesaid character having strips of resilient material throughout all of the outermost marginal edges of the panes and interposed between said panes and the channel-like frame for presenting a positive seal when the secondary frame is moved into position.

Another important object of this invention lies in the interlocking means and weather stripping particularlyadap-table for use in double hung windows using the window construction forming the subject matter of this invention.

Many minor objects relating particularly to details of construction will be made clear during the course of the following specification, reference being had to the accompanying drawing, wherein:

Fig. 1 is a side elevational view of a pair of double pane windows made in accordance with our present invention.

Fig. 2 is a cross sectional view taken on line II-II of Fig. 1.

Fig. 3 is a fragmentary detailed cross sectional view taken on line IIIIII of Fig. 1; and

Fig. 4 is a stretched-out perspective view showing the frame sections per se for the double pane window.

The window construction about'to be described includes a pair of frames broadly designated by the numerals l and I2 respectively. The frame section I 0 includes a pair of side members M of identical character, a bottom i6 and -a top l8. These members M, I6 and I8 of the frame section It are U-shaped in cross section to present a continuous inturned channel when th sections are assembled. The bight portion 20 of the bottom I6, extends beyond the legs 22 of bottom l at each end thereof for receiving the side members 14. In other words, when assembled, the legs 22 of bottom 16 are interposed between the legs 24 of the side members l4. When so assembled, the side members M are welded or otherwise fused together not only along the ends I posed in spaced apart opposed relationship with-;

of the legs 22 but along the marginal edges of bight portion 213 in contacting reiationshipwith the lowermost ends of the members I4. The top I8 is made substantially the same as the bottom 15 with the exception that the bight thereof has an elongated slot 26 formed therein: The downturned legs of this top l8 fit betweenthe legs 24 of members M in the same manner as above described with respect to the bottom It and this top H! is welded together with the mem bers M in the same manner.

Each of the side members 14 is provided with a longitudinal inturned channel 28, as clearly illustrated in Figs. 3 and 4, to receive the conventional cords when the window construction is formed in a double hung window as illustrated in Figs. 1 and 2. The secondary frame I2 is formed from a pair of side members 30 and a top and bottom 32 and 34 respectively. These portions 35, 32 and 34 of frame l2 are polygonal in cross section, as shown in Figs. 2 and 3 and preferably hollow to the end that the frame I2 is relatively light. It is understood that in lieu of the form of members 3!), 32 and 34 as shown;

these members may be U-shaped in cross section if desired to further add to lightness.

Extending throughout the length and disposed upon the innermost faces of all of the legsi'of members M, It and I8 of the frame ID, are strips of resilient material 36. preferably made from sponge-rubber, although any material having like characteristics may be, used. These strips of material 36 are thus disthe same as the width of the bight portions'of the top and bottom l8 and I6 respectively of section [0, but in the case of the side members l4,'the resilient strips 36 are. somewhat narrower to provide sufiicient clearance for the sash cord When the frame section Ill is con 1-.-j

notches 28. pletely assembled and the resilient strips 36 therefore are sealed in place, a pair of panes 33 are inserted within frame section I 0 through slot 26 formed in the top 58 thereof. If desired, a coating of adhesive may be applied between the innermost faces of all of the strips 35 and the proximal outermost edges of the panes 38. After these panes 38 are moved into place, the frame section I2 is inserted between panes 38 through the slot 26. The width of the frame I2 should be such as to wedge tightly between the panes This material 36 is 3 38 and to slightly compress the resilient strips 36. Such tight fit of the frame section l2 between the panes 38 will effectively hold the same in place as well as to hold the panes 38 against displacement. The space between the panes 38 will present effective insulation and to further this feature, it is contemplated that a suitable valve be provided in the frame member I2 to completely evacuate the space between panes 38.

As illustrated in Fig. 2, when windows are made as above described utilizing a polygonal frame ill, the bottom l6 thereof will not conform to the usual type of sloping window sill 48. To present an efiective weather strip seal, a resilient member 42 is welded to the lowermost face of bight 20 of bottom I6. This strip 42 extends the entir length of the bottom 16 and is looped upon itself as is clearly shown in cross section in Fi 2.

When the lowermost of the two double hung windows is moved to the closed position, this strip 42 will strike the sloping sill 48 and the looped portion will be slightly compressed to present a virtually air-tight seal. By the same token, when this window construction is used in the conventional double hung window frame, the two windows will be in spaced apart relationship because of the dividing strip 44 of the frame 46. An interlocking seal is formed between the two windows by the use of a pair of members 48 and 50 respectively. These members 48 and 50 are secured in any suitable manner to the proximal faces of the frames ID of each of the double hung windows. In other words, the member 48 is preferably attached to the bottom 18 of the uppermost frame 18 while the member 58 is affixed to the top member l8 of the lowermost frame. The member 48 has a laterally extending portion 52 projecting toward the member 50 and this portion 52 has its end up-turned as at 54. The member 50, however, is L-shaped and is welded or otherwise afiixed to the uppermost face of the top member l8. One leg of this member 58 is slightly inclined as at 56 and the lowermost free edge thereof is disposed to receive the looped edge 54 of the member 49 as shown in Fig. 2. These members 48 and 50 extend the entire length of the respective windows and when the latter are in the closed position as illustrated in Fig. 2, a virtually air-tight interlocking seal is presented between the members 48 and D. The two double hung windows may be easily opened and closed and when moved to the closed position, these members 48 and 50 will automatically interlock.

A strip 58 is also secured to the top [8 of the upper-most window as shown in Fig. 2. This strip 58 extends the entire length of the top l8 of the frame l2 and is made from any suitable resilient material. Securement to top l8 of strip 58 may be by welding as at 60 or any other desired manner, and this strip 58 extends at an angle upwardly from point of fastening 60 when the window is open. As the window is closed against the framework 46, a tight seal is presented by the flexing of strip 58 and wedging of the same between top l8 and frame 46.

It is clear from the foregoing that the window construction chosen for illustration will be extremely durable, relatively light and attractive in appearance. The panes 38 may be easily replaced when broken, by the simple expedient of removing the frame I2. Under no circumstances will the panes 38 become loose within the frame Ill and an air-tight seal is presented that will not easily establish leaks.

While only one modification of our double pane window has been illustrated and described, it is manifest that many changes and modifications may be made particularly with respect to details of construction without departing from the spirit of the invention or scope of the appended claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. A window comprising a pair of spaced panes; a continuous frame circumscribing the peripheries of said panes, said frame being U-shaped in cross-section presenting spaced legs overlapping proximal outermost marginal edges of said panes, said frame having an opening formed therein; and a continuous, rigid secondary frame adapted for insertion into said opening between the panes for holding the latter spaced apart, said secondary frame having a peripheral part for closing said opening when the secondary frame is between the panes.

2. A window comprising a pair of spaced panes; a continuous frame circumscribing the peripheries of said panes, said frame being U-shaped in cross-section presenting spaced legs overlapping proximal outermost marginal edges of said panes, said frame having an opening formed therein; and a continuous,-rigid secondary frame adapted for insertion into said opening between the panes for holding the latter spaced apart, said secondary frame having a peripheral part for closing said opening when the secondary frame is between the panes, the remainder of the periphery of said secondary frame, exclusive of said part, bearing against the inner faces of proximal bight portion of the U-shaped frame.

RICHARD L. I-IORSTMAN. FLOYD L. OELFKE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,163,365 Probert Dec. 7, 1915 2,057,823 Galey Oct. 20, 1936 2,094,381 Slayter Sept. 28, 193'? 2,130,831 Batchell Sept. 20, 1938 2,189,960 Montgomery et a1. Feb. 13, 1940 2,402,105 .Verhagen June 11, 1946 

